Ships being constructed and other war equipment being transported in the United States during World War I.

War material funded by Liberty Bond drive in the United states during World War 1. Naval ships being constructed with factories in the background. View of shipyard and partially completed warship. Biplanes lined up in a field. An aircraft takes off. A massive railroad gun artillery piece pulled by a locomotive on railroad track. Workers seen sittin on the whole length of the massive rail gun barrel, and then climbing down. Children sit near the rail road track. A U.S. Navy battleship of World War I anchored at harbor and a submarine underway at sea.